1 /* 2 * Base driver for Marvell 88PM8607 3 * 4 * Copyright (C) 2009 Marvell International Ltd. 5 * 6 * Author: Haojian Zhuang <haojian.zhuang@marvell.com> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 */ 12 13 #include <linux/kernel.h> 14 #include <linux/module.h> 15 #include <linux/err.h> 16 #include <linux/i2c.h> 17 #include <linux/irq.h> 18 #include <linux/interrupt.h> 19 #include <linux/irqdomain.h> 20 #include <linux/of.h> 21 #include <linux/of_platform.h> 22 #include <linux/platform_device.h> 23 #include <linux/regmap.h> 24 #include <linux/slab.h> 25 #include <linux/mfd/core.h> 26 #include <linux/mfd/88pm860x.h> 27 #include <linux/regulator/machine.h> 28 #include <linux/power/charger-manager.h> 29 30 #define INT_STATUS_NUM 3 31 32 static struct resource bk0_resources[] = { 33 {2, 2, "duty cycle", IORESOURCE_REG, }, 34 {3, 3, "always on", IORESOURCE_REG, }, 35 {3, 3, "current", IORESOURCE_REG, }, 36 }; 37 static struct resource bk1_resources[] = { 38 {4, 4, "duty cycle", IORESOURCE_REG, }, 39 {5, 5, "always on", IORESOURCE_REG, }, 40 {5, 5, "current", IORESOURCE_REG, }, 41 }; 42 static struct resource bk2_resources[] = { 43 {6, 6, "duty cycle", IORESOURCE_REG, }, 44 {7, 7, "always on", IORESOURCE_REG, }, 45 {5, 5, "current", IORESOURCE_REG, }, 46 }; 47 48 static struct resource led0_resources[] = { 49 /* RGB1 Red LED */ 50 {0xd, 0xd, "control", IORESOURCE_REG, }, 51 {0xc, 0xc, "blink", IORESOURCE_REG, }, 52 }; 53 static struct resource led1_resources[] = { 54 /* RGB1 Green LED */ 55 {0xe, 0xe, "control", IORESOURCE_REG, }, 56 {0xc, 0xc, "blink", IORESOURCE_REG, }, 57 }; 58 static struct resource led2_resources[] = { 59 /* RGB1 Blue LED */ 60 {0xf, 0xf, "control", IORESOURCE_REG, }, 61 {0xc, 0xc, "blink", IORESOURCE_REG, }, 62 }; 63 static struct resource led3_resources[] = { 64 /* RGB2 Red LED */ 65 {0x9, 0x9, "control", IORESOURCE_REG, }, 66 {0x8, 0x8, "blink", IORESOURCE_REG, }, 67 }; 68 static struct resource led4_resources[] = { 69 /* RGB2 Green LED */ 70 {0xa, 0xa, "control", IORESOURCE_REG, }, 71 {0x8, 0x8, "blink", IORESOURCE_REG, }, 72 }; 73 static struct resource led5_resources[] = { 74 /* RGB2 Blue LED */ 75 {0xb, 0xb, "control", IORESOURCE_REG, }, 76 {0x8, 0x8, "blink", IORESOURCE_REG, }, 77 }; 78 79 static struct resource buck1_resources[] = { 80 {0x24, 0x24, "buck set", IORESOURCE_REG, }, 81 }; 82 static struct resource buck2_resources[] = { 83 {0x25, 0x25, "buck set", IORESOURCE_REG, }, 84 }; 85 static struct resource buck3_resources[] = { 86 {0x26, 0x26, "buck set", IORESOURCE_REG, }, 87 }; 88 static struct resource ldo1_resources[] = { 89 {0x10, 0x10, "ldo set", IORESOURCE_REG, }, 90 }; 91 static struct resource ldo2_resources[] = { 92 {0x11, 0x11, "ldo set", IORESOURCE_REG, }, 93 }; 94 static struct resource ldo3_resources[] = { 95 {0x12, 0x12, "ldo set", IORESOURCE_REG, }, 96 }; 97 static struct resource ldo4_resources[] = { 98 {0x13, 0x13, "ldo set", IORESOURCE_REG, }, 99 }; 100 static struct resource ldo5_resources[] = { 101 {0x14, 0x14, "ldo set", IORESOURCE_REG, }, 102 }; 103 static struct resource ldo6_resources[] = { 104 {0x15, 0x15, "ldo set", IORESOURCE_REG, }, 105 }; 106 static struct resource ldo7_resources[] = { 107 {0x16, 0x16, "ldo set", IORESOURCE_REG, }, 108 }; 109 static struct resource ldo8_resources[] = { 110 {0x17, 0x17, "ldo set", IORESOURCE_REG, }, 111 }; 112 static struct resource ldo9_resources[] = { 113 {0x18, 0x18, "ldo set", IORESOURCE_REG, }, 114 }; 115 static struct resource ldo10_resources[] = { 116 {0x19, 0x19, "ldo set", IORESOURCE_REG, }, 117 }; 118 static struct resource ldo12_resources[] = { 119 {0x1a, 0x1a, "ldo set", IORESOURCE_REG, }, 120 }; 121 static struct resource ldo_vibrator_resources[] = { 122 {0x28, 0x28, "ldo set", IORESOURCE_REG, }, 123 }; 124 static struct resource ldo14_resources[] = { 125 {0x1b, 0x1b, "ldo set", IORESOURCE_REG, }, 126 }; 127 128 static struct resource touch_resources[] = { 129 {PM8607_IRQ_PEN, PM8607_IRQ_PEN, "touch", IORESOURCE_IRQ,}, 130 }; 131 132 static struct resource onkey_resources[] = { 133 {PM8607_IRQ_ONKEY, PM8607_IRQ_ONKEY, "onkey", IORESOURCE_IRQ,}, 134 }; 135 136 static struct resource codec_resources[] = { 137 /* Headset microphone insertion or removal */ 138 {PM8607_IRQ_MICIN, PM8607_IRQ_MICIN, "micin", IORESOURCE_IRQ,}, 139 /* Hook-switch press or release */ 140 {PM8607_IRQ_HOOK, PM8607_IRQ_HOOK, "hook", IORESOURCE_IRQ,}, 141 /* Headset insertion or removal */ 142 {PM8607_IRQ_HEADSET, PM8607_IRQ_HEADSET, "headset", IORESOURCE_IRQ,}, 143 /* Audio short */ 144 {PM8607_IRQ_AUDIO_SHORT, PM8607_IRQ_AUDIO_SHORT, "audio-short", 145 IORESOURCE_IRQ,}, 146 }; 147 148 static struct resource battery_resources[] = { 149 {PM8607_IRQ_CC, PM8607_IRQ_CC, "columb counter", IORESOURCE_IRQ,}, 150 {PM8607_IRQ_BAT, PM8607_IRQ_BAT, "battery", IORESOURCE_IRQ,}, 151 }; 152 153 static struct resource charger_resources[] = { 154 {PM8607_IRQ_CHG, PM8607_IRQ_CHG, "charger detect", IORESOURCE_IRQ,}, 155 {PM8607_IRQ_CHG_DONE, PM8607_IRQ_CHG_DONE, "charging done", 156 IORESOURCE_IRQ,}, 157 {PM8607_IRQ_CHG_FAIL, PM8607_IRQ_CHG_FAIL, "charging timeout", 158 IORESOURCE_IRQ,}, 159 {PM8607_IRQ_CHG_FAULT, PM8607_IRQ_CHG_FAULT, "charging fault", 160 IORESOURCE_IRQ,}, 161 {PM8607_IRQ_GPADC1, PM8607_IRQ_GPADC1, "battery temperature", 162 IORESOURCE_IRQ,}, 163 {PM8607_IRQ_VBAT, PM8607_IRQ_VBAT, "battery voltage", IORESOURCE_IRQ,}, 164 {PM8607_IRQ_VCHG, PM8607_IRQ_VCHG, "vchg voltage", IORESOURCE_IRQ,}, 165 }; 166 167 static struct resource rtc_resources[] = { 168 {PM8607_IRQ_RTC, PM8607_IRQ_RTC, "rtc", IORESOURCE_IRQ,}, 169 }; 170 171 static struct mfd_cell bk_devs[] = { 172 { 173 .name = "88pm860x-backlight", 174 .id = 0, 175 .num_resources = ARRAY_SIZE(bk0_resources), 176 .resources = bk0_resources, 177 }, { 178 .name = "88pm860x-backlight", 179 .id = 1, 180 .num_resources = ARRAY_SIZE(bk1_resources), 181 .resources = bk1_resources, 182 }, { 183 .name = "88pm860x-backlight", 184 .id = 2, 185 .num_resources = ARRAY_SIZE(bk2_resources), 186 .resources = bk2_resources, 187 }, 188 }; 189 190 static struct mfd_cell led_devs[] = { 191 { 192 .name = "88pm860x-led", 193 .id = 0, 194 .num_resources = ARRAY_SIZE(led0_resources), 195 .resources = led0_resources, 196 }, { 197 .name = "88pm860x-led", 198 .id = 1, 199 .num_resources = ARRAY_SIZE(led1_resources), 200 .resources = led1_resources, 201 }, { 202 .name = "88pm860x-led", 203 .id = 2, 204 .num_resources = ARRAY_SIZE(led2_resources), 205 .resources = led2_resources, 206 }, { 207 .name = "88pm860x-led", 208 .id = 3, 209 .num_resources = ARRAY_SIZE(led3_resources), 210 .resources = led3_resources, 211 }, { 212 .name = "88pm860x-led", 213 .id = 4, 214 .num_resources = ARRAY_SIZE(led4_resources), 215 .resources = led4_resources, 216 }, { 217 .name = "88pm860x-led", 218 .id = 5, 219 .num_resources = ARRAY_SIZE(led5_resources), 220 .resources = led5_resources, 221 }, 222 }; 223 224 static struct mfd_cell reg_devs[] = { 225 { 226 .name = "88pm860x-regulator", 227 .id = 0, 228 .num_resources = ARRAY_SIZE(buck1_resources), 229 .resources = buck1_resources, 230 }, { 231 .name = "88pm860x-regulator", 232 .id = 1, 233 .num_resources = ARRAY_SIZE(buck2_resources), 234 .resources = buck2_resources, 235 }, { 236 .name = "88pm860x-regulator", 237 .id = 2, 238 .num_resources = ARRAY_SIZE(buck3_resources), 239 .resources = buck3_resources, 240 }, { 241 .name = "88pm860x-regulator", 242 .id = 3, 243 .num_resources = ARRAY_SIZE(ldo1_resources), 244 .resources = ldo1_resources, 245 }, { 246 .name = "88pm860x-regulator", 247 .id = 4, 248 .num_resources = ARRAY_SIZE(ldo2_resources), 249 .resources = ldo2_resources, 250 }, { 251 .name = "88pm860x-regulator", 252 .id = 5, 253 .num_resources = ARRAY_SIZE(ldo3_resources), 254 .resources = ldo3_resources, 255 }, { 256 .name = "88pm860x-regulator", 257 .id = 6, 258 .num_resources = ARRAY_SIZE(ldo4_resources), 259 .resources = ldo4_resources, 260 }, { 261 .name = "88pm860x-regulator", 262 .id = 7, 263 .num_resources = ARRAY_SIZE(ldo5_resources), 264 .resources = ldo5_resources, 265 }, { 266 .name = "88pm860x-regulator", 267 .id = 8, 268 .num_resources = ARRAY_SIZE(ldo6_resources), 269 .resources = ldo6_resources, 270 }, { 271 .name = "88pm860x-regulator", 272 .id = 9, 273 .num_resources = ARRAY_SIZE(ldo7_resources), 274 .resources = ldo7_resources, 275 }, { 276 .name = "88pm860x-regulator", 277 .id = 10, 278 .num_resources = ARRAY_SIZE(ldo8_resources), 279 .resources = ldo8_resources, 280 }, { 281 .name = "88pm860x-regulator", 282 .id = 11, 283 .num_resources = ARRAY_SIZE(ldo9_resources), 284 .resources = ldo9_resources, 285 }, { 286 .name = "88pm860x-regulator", 287 .id = 12, 288 .num_resources = ARRAY_SIZE(ldo10_resources), 289 .resources = ldo10_resources, 290 }, { 291 .name = "88pm860x-regulator", 292 .id = 13, 293 .num_resources = ARRAY_SIZE(ldo12_resources), 294 .resources = ldo12_resources, 295 }, { 296 .name = "88pm860x-regulator", 297 .id = 14, 298 .num_resources = ARRAY_SIZE(ldo_vibrator_resources), 299 .resources = ldo_vibrator_resources, 300 }, { 301 .name = "88pm860x-regulator", 302 .id = 15, 303 .num_resources = ARRAY_SIZE(ldo14_resources), 304 .resources = ldo14_resources, 305 }, 306 }; 307 308 static struct mfd_cell touch_devs[] = { 309 {"88pm860x-touch", -1,}, 310 }; 311 312 static struct mfd_cell onkey_devs[] = { 313 {"88pm860x-onkey", -1,}, 314 }; 315 316 static struct mfd_cell codec_devs[] = { 317 {"88pm860x-codec", -1,}, 318 }; 319 320 static struct regulator_consumer_supply preg_supply[] = { 321 REGULATOR_SUPPLY("preg", "charger-manager"), 322 }; 323 324 static struct regulator_init_data preg_init_data = { 325 .num_consumer_supplies = ARRAY_SIZE(preg_supply), 326 .consumer_supplies = &preg_supply[0], 327 }; 328 329 static struct charger_regulator chg_desc_regulator_data[] = { 330 { .regulator_name = "preg", }, 331 }; 332 333 static struct mfd_cell power_devs[] = { 334 {"88pm860x-battery", -1,}, 335 {"88pm860x-charger", -1,}, 336 {"88pm860x-preg", -1,}, 337 {"charger-manager", -1,}, 338 }; 339 340 static struct mfd_cell rtc_devs[] = { 341 {"88pm860x-rtc", -1,}, 342 }; 343 344 345 struct pm860x_irq_data { 346 int reg; 347 int mask_reg; 348 int enable; /* enable or not */ 349 int offs; /* bit offset in mask register */ 350 }; 351 352 static struct pm860x_irq_data pm860x_irqs[] = { 353 [PM8607_IRQ_ONKEY] = { 354 .reg = PM8607_INT_STATUS1, 355 .mask_reg = PM8607_INT_MASK_1, 356 .offs = 1 << 0, 357 }, 358 [PM8607_IRQ_EXTON] = { 359 .reg = PM8607_INT_STATUS1, 360 .mask_reg = PM8607_INT_MASK_1, 361 .offs = 1 << 1, 362 }, 363 [PM8607_IRQ_CHG] = { 364 .reg = PM8607_INT_STATUS1, 365 .mask_reg = PM8607_INT_MASK_1, 366 .offs = 1 << 2, 367 }, 368 [PM8607_IRQ_BAT] = { 369 .reg = PM8607_INT_STATUS1, 370 .mask_reg = PM8607_INT_MASK_1, 371 .offs = 1 << 3, 372 }, 373 [PM8607_IRQ_RTC] = { 374 .reg = PM8607_INT_STATUS1, 375 .mask_reg = PM8607_INT_MASK_1, 376 .offs = 1 << 4, 377 }, 378 [PM8607_IRQ_CC] = { 379 .reg = PM8607_INT_STATUS1, 380 .mask_reg = PM8607_INT_MASK_1, 381 .offs = 1 << 5, 382 }, 383 [PM8607_IRQ_VBAT] = { 384 .reg = PM8607_INT_STATUS2, 385 .mask_reg = PM8607_INT_MASK_2, 386 .offs = 1 << 0, 387 }, 388 [PM8607_IRQ_VCHG] = { 389 .reg = PM8607_INT_STATUS2, 390 .mask_reg = PM8607_INT_MASK_2, 391 .offs = 1 << 1, 392 }, 393 [PM8607_IRQ_VSYS] = { 394 .reg = PM8607_INT_STATUS2, 395 .mask_reg = PM8607_INT_MASK_2, 396 .offs = 1 << 2, 397 }, 398 [PM8607_IRQ_TINT] = { 399 .reg = PM8607_INT_STATUS2, 400 .mask_reg = PM8607_INT_MASK_2, 401 .offs = 1 << 3, 402 }, 403 [PM8607_IRQ_GPADC0] = { 404 .reg = PM8607_INT_STATUS2, 405 .mask_reg = PM8607_INT_MASK_2, 406 .offs = 1 << 4, 407 }, 408 [PM8607_IRQ_GPADC1] = { 409 .reg = PM8607_INT_STATUS2, 410 .mask_reg = PM8607_INT_MASK_2, 411 .offs = 1 << 5, 412 }, 413 [PM8607_IRQ_GPADC2] = { 414 .reg = PM8607_INT_STATUS2, 415 .mask_reg = PM8607_INT_MASK_2, 416 .offs = 1 << 6, 417 }, 418 [PM8607_IRQ_GPADC3] = { 419 .reg = PM8607_INT_STATUS2, 420 .mask_reg = PM8607_INT_MASK_2, 421 .offs = 1 << 7, 422 }, 423 [PM8607_IRQ_AUDIO_SHORT] = { 424 .reg = PM8607_INT_STATUS3, 425 .mask_reg = PM8607_INT_MASK_3, 426 .offs = 1 << 0, 427 }, 428 [PM8607_IRQ_PEN] = { 429 .reg = PM8607_INT_STATUS3, 430 .mask_reg = PM8607_INT_MASK_3, 431 .offs = 1 << 1, 432 }, 433 [PM8607_IRQ_HEADSET] = { 434 .reg = PM8607_INT_STATUS3, 435 .mask_reg = PM8607_INT_MASK_3, 436 .offs = 1 << 2, 437 }, 438 [PM8607_IRQ_HOOK] = { 439 .reg = PM8607_INT_STATUS3, 440 .mask_reg = PM8607_INT_MASK_3, 441 .offs = 1 << 3, 442 }, 443 [PM8607_IRQ_MICIN] = { 444 .reg = PM8607_INT_STATUS3, 445 .mask_reg = PM8607_INT_MASK_3, 446 .offs = 1 << 4, 447 }, 448 [PM8607_IRQ_CHG_FAIL] = { 449 .reg = PM8607_INT_STATUS3, 450 .mask_reg = PM8607_INT_MASK_3, 451 .offs = 1 << 5, 452 }, 453 [PM8607_IRQ_CHG_DONE] = { 454 .reg = PM8607_INT_STATUS3, 455 .mask_reg = PM8607_INT_MASK_3, 456 .offs = 1 << 6, 457 }, 458 [PM8607_IRQ_CHG_FAULT] = { 459 .reg = PM8607_INT_STATUS3, 460 .mask_reg = PM8607_INT_MASK_3, 461 .offs = 1 << 7, 462 }, 463 }; 464 465 static irqreturn_t pm860x_irq(int irq, void *data) 466 { 467 struct pm860x_chip *chip = data; 468 struct pm860x_irq_data *irq_data; 469 struct i2c_client *i2c; 470 int read_reg = -1, value = 0; 471 int i; 472 473 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; 474 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { 475 irq_data = &pm860x_irqs[i]; 476 if (read_reg != irq_data->reg) { 477 read_reg = irq_data->reg; 478 value = pm860x_reg_read(i2c, irq_data->reg); 479 } 480 if (value & irq_data->enable) 481 handle_nested_irq(chip->irq_base + i); 482 } 483 return IRQ_HANDLED; 484 } 485 486 static void pm860x_irq_lock(struct irq_data *data) 487 { 488 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); 489 490 mutex_lock(&chip->irq_lock); 491 } 492 493 static void pm860x_irq_sync_unlock(struct irq_data *data) 494 { 495 struct pm860x_chip *chip = irq_data_get_irq_chip_data(data); 496 struct pm860x_irq_data *irq_data; 497 struct i2c_client *i2c; 498 static unsigned char cached[3] = {0x0, 0x0, 0x0}; 499 unsigned char mask[3]; 500 int i; 501 502 i2c = (chip->id == CHIP_PM8607) ? chip->client : chip->companion; 503 /* Load cached value. In initial, all IRQs are masked */ 504 for (i = 0; i < 3; i++) 505 mask[i] = cached[i]; 506 for (i = 0; i < ARRAY_SIZE(pm860x_irqs); i++) { 507 irq_data = &pm860x_irqs[i]; 508 switch (irq_data->mask_reg) { 509 case PM8607_INT_MASK_1: 510 mask[0] &= ~irq_data->offs; 511 mask[0] |= irq_data->enable; 512 break; 513 case PM8607_INT_MASK_2: 514 mask[1] &= ~irq_data->offs; 515 mask[1] |= irq_data->enable; 516 break; 517 case PM8607_INT_MASK_3: 518 mask[2] &= ~irq_data->offs; 519 mask[2] |= irq_data->enable; 520 break; 521 default: 522 dev_err(chip->dev, "wrong IRQ\n"); 523 break; 524 } 525 } 526 /* update mask into registers */ 527 for (i = 0; i < 3; i++) { 528 if (mask[i] != cached[i]) { 529 cached[i] = mask[i]; 530 pm860x_reg_write(i2c, PM8607_INT_MASK_1 + i, mask[i]); 531 } 532 } 533 534 mutex_unlock(&chip->irq_lock); 535 } 536 537 static void pm860x_irq_enable(struct irq_data *data) 538 { 539 pm860x_irqs[data->hwirq].enable = pm860x_irqs[data->hwirq].offs; 540 } 541 542 static void pm860x_irq_disable(struct irq_data *data) 543 { 544 pm860x_irqs[data->hwirq].enable = 0; 545 } 546 547 static struct irq_chip pm860x_irq_chip = { 548 .name = "88pm860x", 549 .irq_bus_lock = pm860x_irq_lock, 550 .irq_bus_sync_unlock = pm860x_irq_sync_unlock, 551 .irq_enable = pm860x_irq_enable, 552 .irq_disable = pm860x_irq_disable, 553 }; 554 555 static int pm860x_irq_domain_map(struct irq_domain *d, unsigned int virq, 556 irq_hw_number_t hw) 557 { 558 irq_set_chip_data(virq, d->host_data); 559 irq_set_chip_and_handler(virq, &pm860x_irq_chip, handle_edge_irq); 560 irq_set_nested_thread(virq, 1); 561 irq_set_noprobe(virq); 562 return 0; 563 } 564 565 static const struct irq_domain_ops pm860x_irq_domain_ops = { 566 .map = pm860x_irq_domain_map, 567 .xlate = irq_domain_xlate_onetwocell, 568 }; 569 570 static int device_irq_init(struct pm860x_chip *chip, 571 struct pm860x_platform_data *pdata) 572 { 573 struct i2c_client *i2c = (chip->id == CHIP_PM8607) ? 574 chip->client : chip->companion; 575 unsigned char status_buf[INT_STATUS_NUM]; 576 unsigned long flags = IRQF_TRIGGER_FALLING | IRQF_ONESHOT; 577 int data, mask, ret = -EINVAL; 578 int nr_irqs, irq_base = -1; 579 struct device_node *node = i2c->dev.of_node; 580 581 mask = PM8607_B0_MISC1_INV_INT | PM8607_B0_MISC1_INT_CLEAR 582 | PM8607_B0_MISC1_INT_MASK; 583 data = 0; 584 chip->irq_mode = 0; 585 if (pdata && pdata->irq_mode) { 586 /* 587 * irq_mode defines the way of clearing interrupt. If it's 1, 588 * clear IRQ by write. Otherwise, clear it by read. 589 * This control bit is valid from 88PM8607 B0 steping. 590 */ 591 data |= PM8607_B0_MISC1_INT_CLEAR; 592 chip->irq_mode = 1; 593 } 594 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, mask, data); 595 if (ret < 0) 596 goto out; 597 598 /* mask all IRQs */ 599 memset(status_buf, 0, INT_STATUS_NUM); 600 ret = pm860x_bulk_write(i2c, PM8607_INT_MASK_1, 601 INT_STATUS_NUM, status_buf); 602 if (ret < 0) 603 goto out; 604 605 if (chip->irq_mode) { 606 /* clear interrupt status by write */ 607 memset(status_buf, 0xFF, INT_STATUS_NUM); 608 ret = pm860x_bulk_write(i2c, PM8607_INT_STATUS1, 609 INT_STATUS_NUM, status_buf); 610 } else { 611 /* clear interrupt status by read */ 612 ret = pm860x_bulk_read(i2c, PM8607_INT_STATUS1, 613 INT_STATUS_NUM, status_buf); 614 } 615 if (ret < 0) 616 goto out; 617 618 mutex_init(&chip->irq_lock); 619 620 if (pdata && pdata->irq_base) 621 irq_base = pdata->irq_base; 622 nr_irqs = ARRAY_SIZE(pm860x_irqs); 623 chip->irq_base = irq_alloc_descs(irq_base, 0, nr_irqs, 0); 624 if (chip->irq_base < 0) { 625 dev_err(&i2c->dev, "Failed to allocate interrupts, ret:%d\n", 626 chip->irq_base); 627 ret = -EBUSY; 628 goto out; 629 } 630 irq_domain_add_legacy(node, nr_irqs, chip->irq_base, 0, 631 &pm860x_irq_domain_ops, chip); 632 chip->core_irq = i2c->irq; 633 if (!chip->core_irq) 634 goto out; 635 636 ret = request_threaded_irq(chip->core_irq, NULL, pm860x_irq, 637 flags | IRQF_ONESHOT, "88pm860x", chip); 638 if (ret) { 639 dev_err(chip->dev, "Failed to request IRQ: %d\n", ret); 640 chip->core_irq = 0; 641 } 642 643 return 0; 644 out: 645 chip->core_irq = 0; 646 return ret; 647 } 648 649 static void device_irq_exit(struct pm860x_chip *chip) 650 { 651 if (chip->core_irq) 652 free_irq(chip->core_irq, chip); 653 } 654 655 int pm8606_osc_enable(struct pm860x_chip *chip, unsigned short client) 656 { 657 int ret = -EIO; 658 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? 659 chip->client : chip->companion; 660 661 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client); 662 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n", 663 __func__, chip->osc_vote, 664 chip->osc_status); 665 666 mutex_lock(&chip->osc_lock); 667 /* Update voting status */ 668 chip->osc_vote |= client; 669 /* If reference group is off - turn on*/ 670 if (chip->osc_status != PM8606_REF_GP_OSC_ON) { 671 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; 672 /* Enable Reference group Vsys */ 673 if (pm860x_set_bits(i2c, PM8606_VSYS, 674 PM8606_VSYS_EN, PM8606_VSYS_EN)) 675 goto out; 676 677 /*Enable Internal Oscillator */ 678 if (pm860x_set_bits(i2c, PM8606_MISC, 679 PM8606_MISC_OSC_EN, PM8606_MISC_OSC_EN)) 680 goto out; 681 /* Update status (only if writes succeed) */ 682 chip->osc_status = PM8606_REF_GP_OSC_ON; 683 } 684 mutex_unlock(&chip->osc_lock); 685 686 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n", 687 __func__, chip->osc_vote, 688 chip->osc_status, ret); 689 return 0; 690 out: 691 mutex_unlock(&chip->osc_lock); 692 return ret; 693 } 694 EXPORT_SYMBOL(pm8606_osc_enable); 695 696 int pm8606_osc_disable(struct pm860x_chip *chip, unsigned short client) 697 { 698 int ret = -EIO; 699 struct i2c_client *i2c = (chip->id == CHIP_PM8606) ? 700 chip->client : chip->companion; 701 702 dev_dbg(chip->dev, "%s(B): client=0x%x\n", __func__, client); 703 dev_dbg(chip->dev, "%s(B): vote=0x%x status=%d\n", 704 __func__, chip->osc_vote, 705 chip->osc_status); 706 707 mutex_lock(&chip->osc_lock); 708 /* Update voting status */ 709 chip->osc_vote &= ~(client); 710 /* 711 * If reference group is off and this is the last client to release 712 * - turn off 713 */ 714 if ((chip->osc_status != PM8606_REF_GP_OSC_OFF) && 715 (chip->osc_vote == REF_GP_NO_CLIENTS)) { 716 chip->osc_status = PM8606_REF_GP_OSC_UNKNOWN; 717 /* Disable Reference group Vsys */ 718 if (pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0)) 719 goto out; 720 /* Disable Internal Oscillator */ 721 if (pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0)) 722 goto out; 723 chip->osc_status = PM8606_REF_GP_OSC_OFF; 724 } 725 mutex_unlock(&chip->osc_lock); 726 727 dev_dbg(chip->dev, "%s(A): vote=0x%x status=%d ret=%d\n", 728 __func__, chip->osc_vote, 729 chip->osc_status, ret); 730 return 0; 731 out: 732 mutex_unlock(&chip->osc_lock); 733 return ret; 734 } 735 EXPORT_SYMBOL(pm8606_osc_disable); 736 737 static void device_osc_init(struct i2c_client *i2c) 738 { 739 struct pm860x_chip *chip = i2c_get_clientdata(i2c); 740 741 mutex_init(&chip->osc_lock); 742 /* init portofino reference group voting and status */ 743 /* Disable Reference group Vsys */ 744 pm860x_set_bits(i2c, PM8606_VSYS, PM8606_VSYS_EN, 0); 745 /* Disable Internal Oscillator */ 746 pm860x_set_bits(i2c, PM8606_MISC, PM8606_MISC_OSC_EN, 0); 747 748 chip->osc_vote = REF_GP_NO_CLIENTS; 749 chip->osc_status = PM8606_REF_GP_OSC_OFF; 750 } 751 752 static void device_bk_init(struct pm860x_chip *chip, 753 struct pm860x_platform_data *pdata) 754 { 755 int ret, i; 756 757 if (pdata && pdata->backlight) { 758 if (pdata->num_backlights > ARRAY_SIZE(bk_devs)) 759 pdata->num_backlights = ARRAY_SIZE(bk_devs); 760 for (i = 0; i < pdata->num_backlights; i++) { 761 bk_devs[i].platform_data = &pdata->backlight[i]; 762 bk_devs[i].pdata_size = 763 sizeof(struct pm860x_backlight_pdata); 764 } 765 } 766 ret = mfd_add_devices(chip->dev, 0, bk_devs, 767 ARRAY_SIZE(bk_devs), NULL, 0, NULL); 768 if (ret < 0) 769 dev_err(chip->dev, "Failed to add backlight subdev\n"); 770 } 771 772 static void device_led_init(struct pm860x_chip *chip, 773 struct pm860x_platform_data *pdata) 774 { 775 int ret, i; 776 777 if (pdata && pdata->led) { 778 if (pdata->num_leds > ARRAY_SIZE(led_devs)) 779 pdata->num_leds = ARRAY_SIZE(led_devs); 780 for (i = 0; i < pdata->num_leds; i++) { 781 led_devs[i].platform_data = &pdata->led[i]; 782 led_devs[i].pdata_size = 783 sizeof(struct pm860x_led_pdata); 784 } 785 } 786 ret = mfd_add_devices(chip->dev, 0, led_devs, 787 ARRAY_SIZE(led_devs), NULL, 0, NULL); 788 if (ret < 0) { 789 dev_err(chip->dev, "Failed to add led subdev\n"); 790 return; 791 } 792 } 793 794 static void device_regulator_init(struct pm860x_chip *chip, 795 struct pm860x_platform_data *pdata) 796 { 797 int ret; 798 799 if (pdata == NULL) 800 return; 801 if (pdata->buck1) { 802 reg_devs[0].platform_data = pdata->buck1; 803 reg_devs[0].pdata_size = sizeof(struct regulator_init_data); 804 } 805 if (pdata->buck2) { 806 reg_devs[1].platform_data = pdata->buck2; 807 reg_devs[1].pdata_size = sizeof(struct regulator_init_data); 808 } 809 if (pdata->buck3) { 810 reg_devs[2].platform_data = pdata->buck3; 811 reg_devs[2].pdata_size = sizeof(struct regulator_init_data); 812 } 813 if (pdata->ldo1) { 814 reg_devs[3].platform_data = pdata->ldo1; 815 reg_devs[3].pdata_size = sizeof(struct regulator_init_data); 816 } 817 if (pdata->ldo2) { 818 reg_devs[4].platform_data = pdata->ldo2; 819 reg_devs[4].pdata_size = sizeof(struct regulator_init_data); 820 } 821 if (pdata->ldo3) { 822 reg_devs[5].platform_data = pdata->ldo3; 823 reg_devs[5].pdata_size = sizeof(struct regulator_init_data); 824 } 825 if (pdata->ldo4) { 826 reg_devs[6].platform_data = pdata->ldo4; 827 reg_devs[6].pdata_size = sizeof(struct regulator_init_data); 828 } 829 if (pdata->ldo5) { 830 reg_devs[7].platform_data = pdata->ldo5; 831 reg_devs[7].pdata_size = sizeof(struct regulator_init_data); 832 } 833 if (pdata->ldo6) { 834 reg_devs[8].platform_data = pdata->ldo6; 835 reg_devs[8].pdata_size = sizeof(struct regulator_init_data); 836 } 837 if (pdata->ldo7) { 838 reg_devs[9].platform_data = pdata->ldo7; 839 reg_devs[9].pdata_size = sizeof(struct regulator_init_data); 840 } 841 if (pdata->ldo8) { 842 reg_devs[10].platform_data = pdata->ldo8; 843 reg_devs[10].pdata_size = sizeof(struct regulator_init_data); 844 } 845 if (pdata->ldo9) { 846 reg_devs[11].platform_data = pdata->ldo9; 847 reg_devs[11].pdata_size = sizeof(struct regulator_init_data); 848 } 849 if (pdata->ldo10) { 850 reg_devs[12].platform_data = pdata->ldo10; 851 reg_devs[12].pdata_size = sizeof(struct regulator_init_data); 852 } 853 if (pdata->ldo12) { 854 reg_devs[13].platform_data = pdata->ldo12; 855 reg_devs[13].pdata_size = sizeof(struct regulator_init_data); 856 } 857 if (pdata->ldo_vibrator) { 858 reg_devs[14].platform_data = pdata->ldo_vibrator; 859 reg_devs[14].pdata_size = sizeof(struct regulator_init_data); 860 } 861 if (pdata->ldo14) { 862 reg_devs[15].platform_data = pdata->ldo14; 863 reg_devs[15].pdata_size = sizeof(struct regulator_init_data); 864 } 865 ret = mfd_add_devices(chip->dev, 0, reg_devs, 866 ARRAY_SIZE(reg_devs), NULL, 0, NULL); 867 if (ret < 0) { 868 dev_err(chip->dev, "Failed to add regulator subdev\n"); 869 return; 870 } 871 } 872 873 static void device_rtc_init(struct pm860x_chip *chip, 874 struct pm860x_platform_data *pdata) 875 { 876 int ret; 877 878 if (!pdata) 879 return; 880 881 rtc_devs[0].platform_data = pdata->rtc; 882 rtc_devs[0].pdata_size = sizeof(struct pm860x_rtc_pdata); 883 rtc_devs[0].num_resources = ARRAY_SIZE(rtc_resources); 884 rtc_devs[0].resources = &rtc_resources[0]; 885 ret = mfd_add_devices(chip->dev, 0, &rtc_devs[0], 886 ARRAY_SIZE(rtc_devs), &rtc_resources[0], 887 chip->irq_base, NULL); 888 if (ret < 0) 889 dev_err(chip->dev, "Failed to add rtc subdev\n"); 890 } 891 892 static void device_touch_init(struct pm860x_chip *chip, 893 struct pm860x_platform_data *pdata) 894 { 895 int ret; 896 897 if (pdata == NULL) 898 return; 899 900 touch_devs[0].platform_data = pdata->touch; 901 touch_devs[0].pdata_size = sizeof(struct pm860x_touch_pdata); 902 touch_devs[0].num_resources = ARRAY_SIZE(touch_resources); 903 touch_devs[0].resources = &touch_resources[0]; 904 ret = mfd_add_devices(chip->dev, 0, &touch_devs[0], 905 ARRAY_SIZE(touch_devs), &touch_resources[0], 906 chip->irq_base, NULL); 907 if (ret < 0) 908 dev_err(chip->dev, "Failed to add touch subdev\n"); 909 } 910 911 static void device_power_init(struct pm860x_chip *chip, 912 struct pm860x_platform_data *pdata) 913 { 914 int ret; 915 916 if (pdata == NULL) 917 return; 918 919 power_devs[0].platform_data = pdata->power; 920 power_devs[0].pdata_size = sizeof(struct pm860x_power_pdata); 921 power_devs[0].num_resources = ARRAY_SIZE(battery_resources); 922 power_devs[0].resources = &battery_resources[0], 923 ret = mfd_add_devices(chip->dev, 0, &power_devs[0], 1, 924 &battery_resources[0], chip->irq_base, NULL); 925 if (ret < 0) 926 dev_err(chip->dev, "Failed to add battery subdev\n"); 927 928 power_devs[1].platform_data = pdata->power; 929 power_devs[1].pdata_size = sizeof(struct pm860x_power_pdata); 930 power_devs[1].num_resources = ARRAY_SIZE(charger_resources); 931 power_devs[1].resources = &charger_resources[0], 932 ret = mfd_add_devices(chip->dev, 0, &power_devs[1], 1, 933 &charger_resources[0], chip->irq_base, NULL); 934 if (ret < 0) 935 dev_err(chip->dev, "Failed to add charger subdev\n"); 936 937 power_devs[2].platform_data = &preg_init_data; 938 power_devs[2].pdata_size = sizeof(struct regulator_init_data); 939 ret = mfd_add_devices(chip->dev, 0, &power_devs[2], 1, 940 NULL, chip->irq_base, NULL); 941 if (ret < 0) 942 dev_err(chip->dev, "Failed to add preg subdev\n"); 943 944 if (pdata->chg_desc) { 945 pdata->chg_desc->charger_regulators = 946 &chg_desc_regulator_data[0]; 947 pdata->chg_desc->num_charger_regulators = 948 ARRAY_SIZE(chg_desc_regulator_data), 949 power_devs[3].platform_data = pdata->chg_desc; 950 power_devs[3].pdata_size = sizeof(*pdata->chg_desc); 951 ret = mfd_add_devices(chip->dev, 0, &power_devs[3], 1, 952 NULL, chip->irq_base, NULL); 953 if (ret < 0) 954 dev_err(chip->dev, "Failed to add chg-manager subdev\n"); 955 } 956 } 957 958 static void device_onkey_init(struct pm860x_chip *chip, 959 struct pm860x_platform_data *pdata) 960 { 961 int ret; 962 963 onkey_devs[0].num_resources = ARRAY_SIZE(onkey_resources); 964 onkey_devs[0].resources = &onkey_resources[0], 965 ret = mfd_add_devices(chip->dev, 0, &onkey_devs[0], 966 ARRAY_SIZE(onkey_devs), &onkey_resources[0], 967 chip->irq_base, NULL); 968 if (ret < 0) 969 dev_err(chip->dev, "Failed to add onkey subdev\n"); 970 } 971 972 static void device_codec_init(struct pm860x_chip *chip, 973 struct pm860x_platform_data *pdata) 974 { 975 int ret; 976 977 codec_devs[0].num_resources = ARRAY_SIZE(codec_resources); 978 codec_devs[0].resources = &codec_resources[0], 979 ret = mfd_add_devices(chip->dev, 0, &codec_devs[0], 980 ARRAY_SIZE(codec_devs), &codec_resources[0], 0, 981 NULL); 982 if (ret < 0) 983 dev_err(chip->dev, "Failed to add codec subdev\n"); 984 } 985 986 static void device_8607_init(struct pm860x_chip *chip, 987 struct i2c_client *i2c, 988 struct pm860x_platform_data *pdata) 989 { 990 int data, ret; 991 992 ret = pm860x_reg_read(i2c, PM8607_CHIP_ID); 993 if (ret < 0) { 994 dev_err(chip->dev, "Failed to read CHIP ID: %d\n", ret); 995 goto out; 996 } 997 switch (ret & PM8607_VERSION_MASK) { 998 case 0x40: 999 case 0x50: 1000 dev_info(chip->dev, "Marvell 88PM8607 (ID: %02x) detected\n", 1001 ret); 1002 break; 1003 default: 1004 dev_err(chip->dev, 1005 "Failed to detect Marvell 88PM8607. Chip ID: %02x\n", 1006 ret); 1007 goto out; 1008 } 1009 1010 ret = pm860x_reg_read(i2c, PM8607_BUCK3); 1011 if (ret < 0) { 1012 dev_err(chip->dev, "Failed to read BUCK3 register: %d\n", ret); 1013 goto out; 1014 } 1015 if (ret & PM8607_BUCK3_DOUBLE) 1016 chip->buck3_double = 1; 1017 1018 ret = pm860x_reg_read(i2c, PM8607_B0_MISC1); 1019 if (ret < 0) { 1020 dev_err(chip->dev, "Failed to read MISC1 register: %d\n", ret); 1021 goto out; 1022 } 1023 1024 if (pdata && (pdata->i2c_port == PI2C_PORT)) 1025 data = PM8607_B0_MISC1_PI2C; 1026 else 1027 data = 0; 1028 ret = pm860x_set_bits(i2c, PM8607_B0_MISC1, PM8607_B0_MISC1_PI2C, data); 1029 if (ret < 0) { 1030 dev_err(chip->dev, "Failed to access MISC1:%d\n", ret); 1031 goto out; 1032 } 1033 1034 ret = device_irq_init(chip, pdata); 1035 if (ret < 0) 1036 goto out; 1037 1038 device_regulator_init(chip, pdata); 1039 device_rtc_init(chip, pdata); 1040 device_onkey_init(chip, pdata); 1041 device_touch_init(chip, pdata); 1042 device_power_init(chip, pdata); 1043 device_codec_init(chip, pdata); 1044 out: 1045 return; 1046 } 1047 1048 static void device_8606_init(struct pm860x_chip *chip, 1049 struct i2c_client *i2c, 1050 struct pm860x_platform_data *pdata) 1051 { 1052 device_osc_init(i2c); 1053 device_bk_init(chip, pdata); 1054 device_led_init(chip, pdata); 1055 } 1056 1057 static int pm860x_device_init(struct pm860x_chip *chip, 1058 struct pm860x_platform_data *pdata) 1059 { 1060 chip->core_irq = 0; 1061 1062 switch (chip->id) { 1063 case CHIP_PM8606: 1064 device_8606_init(chip, chip->client, pdata); 1065 break; 1066 case CHIP_PM8607: 1067 device_8607_init(chip, chip->client, pdata); 1068 break; 1069 } 1070 1071 if (chip->companion) { 1072 switch (chip->id) { 1073 case CHIP_PM8607: 1074 device_8606_init(chip, chip->companion, pdata); 1075 break; 1076 case CHIP_PM8606: 1077 device_8607_init(chip, chip->companion, pdata); 1078 break; 1079 } 1080 } 1081 1082 return 0; 1083 } 1084 1085 static void pm860x_device_exit(struct pm860x_chip *chip) 1086 { 1087 device_irq_exit(chip); 1088 mfd_remove_devices(chip->dev); 1089 } 1090 1091 static int verify_addr(struct i2c_client *i2c) 1092 { 1093 unsigned short addr_8607[] = {0x30, 0x34}; 1094 unsigned short addr_8606[] = {0x10, 0x11}; 1095 int size, i; 1096 1097 if (i2c == NULL) 1098 return 0; 1099 size = ARRAY_SIZE(addr_8606); 1100 for (i = 0; i < size; i++) { 1101 if (i2c->addr == *(addr_8606 + i)) 1102 return CHIP_PM8606; 1103 } 1104 size = ARRAY_SIZE(addr_8607); 1105 for (i = 0; i < size; i++) { 1106 if (i2c->addr == *(addr_8607 + i)) 1107 return CHIP_PM8607; 1108 } 1109 return 0; 1110 } 1111 1112 static const struct regmap_config pm860x_regmap_config = { 1113 .reg_bits = 8, 1114 .val_bits = 8, 1115 }; 1116 1117 static int pm860x_dt_init(struct device_node *np, 1118 struct device *dev, 1119 struct pm860x_platform_data *pdata) 1120 { 1121 int ret; 1122 1123 if (of_get_property(np, "marvell,88pm860x-irq-read-clr", NULL)) 1124 pdata->irq_mode = 1; 1125 ret = of_property_read_u32(np, "marvell,88pm860x-slave-addr", 1126 &pdata->companion_addr); 1127 if (ret) { 1128 dev_err(dev, 1129 "Not found \"marvell,88pm860x-slave-addr\" property\n"); 1130 pdata->companion_addr = 0; 1131 } 1132 return 0; 1133 } 1134 1135 static int pm860x_probe(struct i2c_client *client) 1136 { 1137 struct pm860x_platform_data *pdata = dev_get_platdata(&client->dev); 1138 struct device_node *node = client->dev.of_node; 1139 struct pm860x_chip *chip; 1140 int ret; 1141 1142 if (node && !pdata) { 1143 /* parse DT to get platform data */ 1144 pdata = devm_kzalloc(&client->dev, 1145 sizeof(struct pm860x_platform_data), 1146 GFP_KERNEL); 1147 if (!pdata) 1148 return -ENOMEM; 1149 ret = pm860x_dt_init(node, &client->dev, pdata); 1150 if (ret) 1151 return ret; 1152 } else if (!pdata) { 1153 pr_info("No platform data in %s!\n", __func__); 1154 return -EINVAL; 1155 } 1156 1157 chip = devm_kzalloc(&client->dev, 1158 sizeof(struct pm860x_chip), GFP_KERNEL); 1159 if (chip == NULL) 1160 return -ENOMEM; 1161 1162 chip->id = verify_addr(client); 1163 chip->regmap = devm_regmap_init_i2c(client, &pm860x_regmap_config); 1164 if (IS_ERR(chip->regmap)) { 1165 ret = PTR_ERR(chip->regmap); 1166 dev_err(&client->dev, "Failed to allocate register map: %d\n", 1167 ret); 1168 return ret; 1169 } 1170 chip->client = client; 1171 i2c_set_clientdata(client, chip); 1172 chip->dev = &client->dev; 1173 dev_set_drvdata(chip->dev, chip); 1174 1175 /* 1176 * Both client and companion client shares same platform driver. 1177 * Driver distinguishes them by pdata->companion_addr. 1178 * pdata->companion_addr is only assigned if companion chip exists. 1179 * At the same time, the companion_addr shouldn't equal to client 1180 * address. 1181 */ 1182 if (pdata->companion_addr && (pdata->companion_addr != client->addr)) { 1183 chip->companion_addr = pdata->companion_addr; 1184 chip->companion = i2c_new_dummy(chip->client->adapter, 1185 chip->companion_addr); 1186 if (!chip->companion) { 1187 dev_err(&client->dev, 1188 "Failed to allocate I2C companion device\n"); 1189 return -ENODEV; 1190 } 1191 chip->regmap_companion = regmap_init_i2c(chip->companion, 1192 &pm860x_regmap_config); 1193 if (IS_ERR(chip->regmap_companion)) { 1194 ret = PTR_ERR(chip->regmap_companion); 1195 dev_err(&chip->companion->dev, 1196 "Failed to allocate register map: %d\n", ret); 1197 i2c_unregister_device(chip->companion); 1198 return ret; 1199 } 1200 i2c_set_clientdata(chip->companion, chip); 1201 } 1202 1203 pm860x_device_init(chip, pdata); 1204 return 0; 1205 } 1206 1207 static int pm860x_remove(struct i2c_client *client) 1208 { 1209 struct pm860x_chip *chip = i2c_get_clientdata(client); 1210 1211 pm860x_device_exit(chip); 1212 if (chip->companion) { 1213 regmap_exit(chip->regmap_companion); 1214 i2c_unregister_device(chip->companion); 1215 } 1216 return 0; 1217 } 1218 1219 #ifdef CONFIG_PM_SLEEP 1220 static int pm860x_suspend(struct device *dev) 1221 { 1222 struct i2c_client *client = to_i2c_client(dev); 1223 struct pm860x_chip *chip = i2c_get_clientdata(client); 1224 1225 if (device_may_wakeup(dev) && chip->wakeup_flag) 1226 enable_irq_wake(chip->core_irq); 1227 return 0; 1228 } 1229 1230 static int pm860x_resume(struct device *dev) 1231 { 1232 struct i2c_client *client = to_i2c_client(dev); 1233 struct pm860x_chip *chip = i2c_get_clientdata(client); 1234 1235 if (device_may_wakeup(dev) && chip->wakeup_flag) 1236 disable_irq_wake(chip->core_irq); 1237 return 0; 1238 } 1239 #endif 1240 1241 static SIMPLE_DEV_PM_OPS(pm860x_pm_ops, pm860x_suspend, pm860x_resume); 1242 1243 static const struct i2c_device_id pm860x_id_table[] = { 1244 { "88PM860x", 0 }, 1245 {} 1246 }; 1247 MODULE_DEVICE_TABLE(i2c, pm860x_id_table); 1248 1249 static const struct of_device_id pm860x_dt_ids[] = { 1250 { .compatible = "marvell,88pm860x", }, 1251 {}, 1252 }; 1253 MODULE_DEVICE_TABLE(of, pm860x_dt_ids); 1254 1255 static struct i2c_driver pm860x_driver = { 1256 .driver = { 1257 .name = "88PM860x", 1258 .pm = &pm860x_pm_ops, 1259 .of_match_table = pm860x_dt_ids, 1260 }, 1261 .probe_new = pm860x_probe, 1262 .remove = pm860x_remove, 1263 .id_table = pm860x_id_table, 1264 }; 1265 1266 static int __init pm860x_i2c_init(void) 1267 { 1268 int ret; 1269 1270 ret = i2c_add_driver(&pm860x_driver); 1271 if (ret != 0) 1272 pr_err("Failed to register 88PM860x I2C driver: %d\n", ret); 1273 return ret; 1274 } 1275 subsys_initcall(pm860x_i2c_init); 1276 1277 static void __exit pm860x_i2c_exit(void) 1278 { 1279 i2c_del_driver(&pm860x_driver); 1280 } 1281 module_exit(pm860x_i2c_exit); 1282 1283 MODULE_DESCRIPTION("PMIC Driver for Marvell 88PM860x"); 1284 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>"); 1285 MODULE_LICENSE("GPL"); 1286